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#1
17-10-2010
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Charging at More Than 1C
More and more Lipo's now say you can charge them at more than 1C (I have 1 which says 6C!), what impact does charging at over 1c have, is it dangerous? Shortens life a little/lot? Any other effect!?
Also, should it be at a specific rate or doesn't it matter, eg if I have a 5000mah pack which says max charge is 2C does it matter whether I charge at 6/8/10A etc?
__________________
Dave "Amish FJ" Gibson RB Products ~ Yokomo Nuclear RC ~ Xpert ~ Hacker 
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#2
17-10-2010
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I have also asked the same question dave and so far the only answers I have got back contradict each other, I guess the only drawback may well be reduced cycle life if charging at high amp rates I would also guess a pack would go nuclear faster at 6C than 1C although I cannot prove either, My current packs are still rated at max 2C charge but i still use 1C not a big deal but 1C is 5 amps 2C is 10 amps quite a difference.
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#4
18-10-2010
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In the instructions for my LRP VETC 4800 saddles they recommend that they are charged at 10 amps!
__________________
Team Associated B44FT ~ LRP SXX TC Spec ~ LRP Vector X12 6.5t ~ Savox SC-1251MG ~ Spektrum DX3S Schumacher Cougar SV Pro ~ LRP Sphere TC Spec ~ Losi Xcelorin 6.5t ~ Savox SC-1257 ~ Spektrum SR3100 ~ Spektrum DX3S In progress: Team Durango DEX410 V1-V4 hybrid ~ DESC410V2 ~ DEX210
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#5
18-10-2010
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I see most chargers only goto 5A anyway. My overloader goes to 8A, but since I charge up the day before there's no rush.
__________________
 CML Distribution - Distributors of Quality Radio Control Models & RC Hobby Products
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#6
18-10-2010
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This is taken from trakpowers site.
Normal charge rates for a LiPo pack are 1C (1 x Capacity in Amps) this will take around 1 hour, TrakPower packs are capable of being fast charged at up to 2C with a TrakPower V-Balancer or other certified balance charger. 2c is not something I would do, as on other sites it claims charging a lipo at more than 1c decreases the life of the battery. As said in other posts not many chargers go above 5amps anyway, so just charge them a few days before the event if time is an issue but for safety always use a lipo bag.
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My feedback http://www.oople.com/forums/showthread.php?t=19395
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#7
18-10-2010
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Can anybody explain why charging at more than 1C reduces lipo life?
Will charging at 1/2 C make my cells last even longer?
__________________
www.MattAirbrushing.co.uk - Custom RC paint.
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#8
18-10-2010
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Quote:
the companies cells are now traktech http://www.energonsolutions.co.uk/Pr...riesID=1898056 as soon as the new cells are here I will be sending them to the EB for homlogation
__________________
MBModels - Schumacher Racing - Vapextech.co.uk - MRT - Savox - SMD
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#9
18-10-2010
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Yes
Most modern Lipo packs can be safely charged at 2c. i also fly planes and heli's and some packs can be charged at 5c with little degradation in cycle life. I even have one that can be charged at 10c which is a 2200mah 3s pack which would require 250w charging power to do so :P
hope this helps Brett
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#10
18-10-2010
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The best advice i can give is charge "at least at 1c" but if you need your pack quicker then charge higher only if you have too. It wont affect performance in the model but it will affect its lifecycles.
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